Search our library of Biology GCSE questions

Top answers

Biology

GCSE

How do we regulate body temperature?

Homeostasis, the regulation of stable body conditions, includes control of body temperature. We function efficiently at 37 degrees celsius, as our proteins and enzymes work best at this temperature.

Answered by Sophie S. • Biology tutor

4499 Views

Which best describes the function of a cell membrane? (a) It keeps the cell in shape. (b) It controls the substances entering and leaving the cell. (c) It controls the substances entering the cell. (d) It supports the cell structures.

This is an example of how you can get around not knowing an answer in a multiple choice question by using some basic knowledge and powers of deduction.

(a) "it keeps the cell in shap...

Answered by Rebecca W. • Biology tutor

13715 Views

What is active transport the movement of and what does it need to occur? Give some examples of where is might occur in the human body.

Active transport is another method by which molecules are transported into and out of the body. It is the movment of solutes that have been dissolved in water into and out of the cell against their con...

Answered by Martha K. • Biology tutor

8346 Views

What can happen to a red blood cell if placed into a solution that is more dilute than its own cell contents?

The red blood cell is an animal cell therefore has no cell wall and will change its shape and seize dependent on the concentrations of solutions around it. When placed in a more dilture solution a red ...

Answered by Martha K. • Biology tutor

8423 Views

What is osmosis and where does it occur in the human body?

Osmosis is the movement of water from areas of high concentrations to lower concentrations across a semi permeable membrane. It occurs over these membranes in cells of the body alllowing water to move...

Answered by Martha K. • Biology tutor

53046 Views